--- product_id: 254439550 title: "Blue Sea Systems MRBF Surface and Terminal Mount Fuse Blocks" brand: "blue sea systems" price: "₱4586" currency: PHP in_stock: true reviews_count: 5 category: "Blue Sea Systems" url: https://www.desertcart.ph/products/254439550-blue-sea-systems-mrbf-surface-and-terminal-mount-fuse-blocks store_origin: PH region: Philippines --- # 300A max current 58V DC max voltage Compact 3/8" mount Blue Sea Systems MRBF Surface and Terminal Mount Fuse Blocks **Brand:** blue sea systems **Price:** ₱4586 **Availability:** ✅ In Stock ## Summary > ⚡ Fuse your circuits with confidence — power meets precision! ## Quick Answers - **What is this?** Blue Sea Systems MRBF Surface and Terminal Mount Fuse Blocks by blue sea systems - **How much does it cost?** ₱4586 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/254439550-blue-sea-systems-mrbf-surface-and-terminal-mount-fuse-blocks) ## Best For - blue sea systems enthusiasts ## Why This Product - Trusted blue sea systems brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Ignition Safe:** Ignition protected when paired with MRBF fuses for reliable starts - • **Short-Circuit Shield:** Insulating cap prevents accidental shorts, ensuring peace of mind - • **Weatherproof Warrior:** Built to withstand harsh marine and open-pit environments - • **Dual Fuse Flexibility:** Supports 2 fuses (30A-300A) for tailored multi-circuit protection - • **Powerhouse Protection:** Handles up to 300A per block for robust circuit safety ## Overview The Blue Sea Systems MRBF Surface and Terminal Mount Fuse Blocks deliver high-amperage DC circuit protection up to 58V and 300A per block. Designed for durability and weather resistance, these compact fuse blocks feature dual fuse positions (30A-300A), insulating caps to prevent shorts, and ignition protection when used with MRBF fuses. Ideal for marine, battery, and inverter applications, they combine rugged reliability with versatile installation options. ## Description Blue Sea Systems 2151 Dual MRBF Terminal Fuse Block - 30 to 300A : desertcart.ae: Industrial & Scientific Review: Durable, strong, lots of use cases for all batteries above 100 Ah - Great product. These are a good value, easy to install, and a convenient size for the post of nearly all LFP batteries. They're also built like a tank, and therefore suitable for a wide range of use cases. I fuse all of my LFP batteries I find it useful to have two fuses on the block for larger batteries (200 and 300 Ah) because they often run circuits with higher and lower current drain, so I want separate fault protection for the distribution blocks on those circuits. Note: I use only Buss fuses because I don't trust low-cost knock-offs to blow at their rated current based on testing and research I have seen. Review: Bon achat - Produit de qualité ## Features - Voltage Max Operating: 58V DC, Amps Max Operating: 300A per block, Terminal Fuses Avail.: 30A-300A, Terminal Stud Size: 5/16"-18 (8mm), Mounting Hole Size: #10 (5mm)3/8" - Compact, high-amp fuse—appropriate for DC Main, inverter, windlass, and bow thruster circuit protection - Weatherproof – suitable for small open-pit boats and other harsh environments - Insulating cap prevents accidental shorts - Ignition protected when used with MRBF fuses.Fuses sold separately ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B002INJXO6 | | Best Sellers Rank | #109,828 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #237 in Fuses & Holders | | Brand Name | Blue Sea Systems | | Color | Double Fuse | | Colour | Double Fuse | | Connector Type | Screw | | Connector type | Screw | | Current Rating | 300 Amps | | Current rating | 300 Amps | | Customer Reviews | 4.6 out of 5 stars 267 Reviews | | Global Trade Identification Number | 00632085021511 | | Included Components | Blue Sea Systems 2151-BSS Dual MRBF Terminal Fuse Block - 30 to 300A | | Item Dimensions W x H | 6.4W x 8.9H centimeters | | Item Type Name | Blue Sea Systems 2151-BSS Dual MRBF Terminal Fuse Block - 30 to 300A | | Item Weight | 4.8 Ounces | | Manufacturer | Blue Sea Systems | | Material | Plastic | | Material Type | Plastic | | Model | 2151 | | Mounting Type | 3/8 inch threaded mount | | Mounting type | 3/8 inch threaded mount | | Number Of Contacts | 2 | | Number Of Poles | 2 | | Number of Items | 1 | | Number of Positions | 2 | | Number of contacts | 2 | | Part Number | 2151 | | Specification Met | Unspecified Standards Meet | | UPC | 632085021511 | | Unit Count | 1 Count | | Voltage | 58 Volts (DC) | ## Product Details - **Connector type:** Screw - **Current rating:** 300 Amps - **Material:** Plastic - **Mounting type:** 3/8 inch threaded mount - **Number of contacts:** 2 ## Images ![Blue Sea Systems MRBF Surface and Terminal Mount Fuse Blocks - Image 1](https://m.media-amazon.com/images/I/61iQg3HoniL.jpg) ![Blue Sea Systems MRBF Surface and Terminal Mount Fuse Blocks - Image 2](https://m.media-amazon.com/images/I/41aMH9iK-ZL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Durable, strong, lots of use cases for all batteries above 100 Ah *by R***Y on 20 August 2026* Great product. These are a good value, easy to install, and a convenient size for the post of nearly all LFP batteries. They're also built like a tank, and therefore suitable for a wide range of use cases. I fuse all of my LFP batteries I find it useful to have two fuses on the block for larger batteries (200 and 300 Ah) because they often run circuits with higher and lower current drain, so I want separate fault protection for the distribution blocks on those circuits. Note: I use only Buss fuses because I don't trust low-cost knock-offs to blow at their rated current based on testing and research I have seen. ### ⭐⭐⭐⭐⭐ Bon achat *by Y***N on 1 April 2026* Produit de qualité ### ⭐⭐⭐⭐ Way too expensive for what it is... *by P***K on 16 January 2026* Ridiculously expensive. Well made product but you have to question the cost. Quality costs... unless you're being ripped off! ## Frequently Bought Together - Blue Sea Systems 2151 Dual MRBF Terminal Fuse Block - 30 to 300A - Blue Sea Systems Terminal Fuses --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ph/products/254439550-blue-sea-systems-mrbf-surface-and-terminal-mount-fuse-blocks](https://www.desertcart.ph/products/254439550-blue-sea-systems-mrbf-surface-and-terminal-mount-fuse-blocks) --- *Product available on Desertcart Philippines* *Store origin: PH* *Last updated: 2026-09-20*